556304 has 20 divisors (see below), whose sum is σ = 1232064. Its totient is φ = 238368.

The previous prime is 556289. The next prime is 556313. The reversal of 556304 is 403655.

It is a self number, because there is not a number n which added to its sum of digits gives 556304.

It is an unprimeable number.

556304 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2372 + ... + 2595.

2⁵⁵⁶³⁰⁴ is an apocalyptic number.

It is an amenable number.

556304 is an abundant number, since it is smaller than the sum of its proper divisors (675760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

556304 is a wasteful number, since it uses less digits than its factorization.

556304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4982 (or 4976 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 556304 is about 745.8578953125. The cubic root of 556304 is about 82.2439690333.

Adding to 556304 its reverse (403655), we get a palindrome (959959).

The spelling of 556304 in words is "five hundred fifty-six thousand, three hundred four".